Home / 20,738,049.40-31,097,742.90-7,954,305.40

Finding the Fourth Proportional to 20,738,049.40, 31,097,742.90 and 7,954,305.40

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Solution

The fourth proportional to 20,738,049.40, 31,097,742.90 and 7,954,305.40 is: 11,927,879.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,738,049.40 : 31,097,742.90 = 7,954,305.40 : x
  2. Step 2: Convert to fraction form
    20,738,049.40/31,097,742.90 = 7,954,305.40/x
  3. Step 3: Cross multiply
    20,738,049.40x = 31,097,742.90 × 7,954,305.40
  4. Step 4: Simplify right side
    20,738,049.40x = 247,360,944,277,281.66
  5. Step 5: Solve for x
    x = 247,360,944,277,281.66/20,738,049.40
  6. Step 6: Final answer
    x = 11,927,879.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.